Stand Up For Science !
Posts by Christophe Marquestaut
En haut : photo de la galaxie du Sombrero prise par le JWST. En bas : photo de la galaxie du Sombrero prise par Hubble.
Une magnifique photo de la galaxie du Sombrero prise par le télescope spatial #JWST vient d'être publiée.
Comparaison avec la photo de la même galaxie prise par Hubble : le JWST voit à travers les poussières du disque.
Et si VOUS participiez à la mission Euclid à nouveau ? 🥰
Nous venons de lancer la campagne "space wraps" sur la plateforme Zooniverse ! 🚀 🛰️
⬇️ On vous explique tout ⬇️
www.zooniverse.org/projects/apr...
#espace #spatial #astronomie #astrophysique #sciencecitoyenne #sciencesparticipatives
Comet Pons-Brooks' Swirling Coma A bright comet will be visible during next month's total solar eclipse. This very unusual coincidence occurs because Comet 12P/Pons-Brooks's return to the inner Solar System places it by chance only 25 degrees away from the Sun during Earth's April 8 total solar eclipse. Currently the comet is just on the edge of visibility to the unaided eye, best visible with binoculars in the early evening sky toward the constellation of the Fish (Pisces). Comet Pons-Brooks, though, is putting on quite a show for deep camera images even now. The featured image is a composite of three very specific colors, showing the comet's ever-changing ion tail in light blue, its outer coma in green, and highlights some red-glowing gas around the coma in a spiral. The spiral is thought to be caused by gas being expelled by the slowly rotating nucleus of the giant iceberg comet. Although it is always difficult to predict the future brightness of comets, Comet Pons-Brook has been particularly prone to outbursts, making it even more difficult to predict how bright it will actually be as the Moon moves in front of the Sun on April 8. Image Credit & Copyright: Jan Erik Vallestad
Comet Pons-Brooks' Swirling Coma
The Sombrero galaxy
The Sombrero galaxy
Sombrero galaxy: Hubble+Spitzer VS JWST
Credits
1) NASA/JPL-Caltech and The Hubble Heritage Team (STScI/AURA)
2) NASA, ESA, CSA, STScI
Sources
1) esahubble.org/images/opo03...
2) webbtelescope.org/contents/med...